Decrypt - strange behavior with invalid input parameter

VCL TMS Cryptography Pack
1

Hi,
In attachment example project and question is, why when I decrypt string which is invalid, the decrypt function doesn't raise any exceptons and program ends without any exception message?
decrypterr.zip (27.9 KB)

To reproduce this do steps like below:

  1. Run program and fill-in like below and click encrypt.

    obraz
    obraz692×403 3.52 KB

  2. You should see in Encrypted field this string

E92676D0F8FEA0E09F31C26A27024E09

  1. Now change last sign from 9 to 1 ... the string should be E92676D0F8FEA0E09F31C26A27024E01 and click Decrypt.

The project exits without any error message, how can I display message e.g. 'Invalid string to decrypt' when I can't catch any errors in this situation?

Regards,

3

Hi,
Thank you for reporting this issue. I will take a look at this today and fix it in the next version.
Best regards,
Marion

4

Hi,
This issue has been fixed in the 4.3 version.
Best regards,
Marion

5

Thanks Marion ... I will check this ... and when something will be wrong I let you know.

Regards,

6

Did you check my example project on the version 4.3?
I have the same problem described at the top of this topic :thinking:

7

So I checked it in the demo. The both problems persist.

8

Sorry, the tests pass in C but not in Delphi. I have found the issue and will release a new version with the fix.

9

The 4.3.0.1 version is released and it raises an exception when a wrong string is passed to the decrypt function.

10

Thank you very much ... now in Delphi everything is ok.

11

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